Results 61 to 70 of about 389,425 (138)

What discontinued trials teach us about trial registration? [PDF]

open access: yesBMC Res Notes, 2021
Vellinga A   +3 more
europepmc   +1 more source

Trial registration in CAM

open access: yesComplementary Therapies in Medicine, 2011
Max H, Pittler   +2 more
openaire   +2 more sources

Deficiencies in Planning Interventional Trial Registration of COVID-19 in China. [PDF]

open access: yesFront Med (Lausanne), 2021
Li X   +6 more
europepmc   +1 more source

Clinical trial registration: now required

open access: yesBrazilian Oral Research, 2008
Mônica Andrade Lotufo
doaj   +1 more source

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